Earthquake with magnitude of Md 3.0 on date 17-04-1986 and time 23:27:48 (Italy) in region 2 km W Gesualdo (AV)

A magnitude Md 3.0 earthquake occured in region: 2 km W Gesualdo (AV), on

  • 17-04-1986 21:27:48 (UTC)
  • 17-04-1986 23:27:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.0010, 15.0500 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Gesualdo AV 2 3516 3516
Paternopoli AV 3 2384 5900
Fontanarosa AV 3 3170 9070
Frigento AV 4 3780 12850
Villamaina AV 5 995 13845
Sant'Angelo all'Esca AV 5 801 14646
Luogosano AV 5 1187 15833
Sturno AV 6 3080 18913
Mirabella Eclano AV 7 7684 26597
Castelfranci AV 8 2041 28638
Taurasi AV 8 2377 31015
San Mango sul Calore AV 8 1185 32200
Grottaminarda AV 8 8137 40337
Torella dei Lombardi AV 9 2144 42481
Lapio AV 9 1572 44053
Castelvetere sul Calore AV 9 1615 45668
Montemarano AV 10 2851 48519
Rocca San Felice AV 11 851 49370
Melito Irpino AV 11 1920 51290
Torre Le Nocelle AV 12 1324 52614
Flumeri AV 12 2963 55577
Montemiletto AV 12 5313 60890
Bonito AV 12 2448 63338
Venticano AV 12 2537 65875
Castel Baronia AV 13 1129 67004
Nusco AV 13 4203 71207
Sant'Angelo dei Lombardi AV 13 4250 75457
Chiusano di San Domenico AV 14 2277 77734
Carife AV 14 1408 79142
Pietradefusi AV 14 2348 81490
San Nicola Baronia AV 14 771 82261
Guardia Lombardi AV 14 1718 83979
Montefalcione AV 14 3359 87338
Cassano Irpino AV 15 982 88320
San Sossio Baronia AV 15 1643 89963
Parolise AV 16 663 90626
Candida AV 16 1147 91773
Salza Irpina AV 16 772 92545
Trevico AV 16 993 93538
Villanova del Battista AV 16 1690 95228
Sorbo Serpico AV 17 583 95811
Apice BN 17 5686 101497
Pratola Serra AV 17 3764 105261
Montefusco AV 17 1338 106599
San Potito Ultra AV 17 1558 108157
San Nazzaro BN 17 884 109041
Santa Paolina AV 17 1256 110297
Calvi BN 17 2682 112979
Ariano Irpino AV 17 22700 135679
Volturara Irpina AV 17 3289 138968
Vallata AV 18 2714 141682
Montella AV 18 7780 149462
San Giorgio del Sannio BN 18 10022 159484
Prata di Principato Ultra AV 18 2944 162428
Manocalzati AV 18 3160 165588
Lioni AV 18 6201 171789
Vallesaccarda AV 19 1386 173175
Morra De Sanctis AV 19 1297 174472
Bagnoli Irpino AV 19 3217 177689
Tufo AV 19 889 178578
Zungoli AV 19 1099 179677
Santo Stefano del Sole AV 19 2208 181885
San Martino Sannita BN 19 1230 183115

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Avellino (54857 inhabitants)
27 Km SE of Benevento (60091 inhabitants)
43 Km NE of Salerno (135261 inhabitants)
44 Km N of Battipaglia (50786 inhabitants)
44 Km NE of Cava de' Tirreni (53659 inhabitants)
52 Km NE of Scafati (50787 inhabitants)
57 Km E of Acerra (59573 inhabitants)
59 Km NE of Castellammare di Stabia (66466 inhabitants)
61 Km E of Caserta (76326 inhabitants)
62 Km E of Portici (55274 inhabitants)
62 Km E of Torre del Greco (86275 inhabitants)
63 Km E of Afragola (65057 inhabitants)
63 Km E of Ercolano (53709 inhabitants)
65 Km E of Casoria (77642 inhabitants)
66 Km SW of Foggia (151991 inhabitants)
69 Km E of Napoli (974074 inhabitants)
71 Km E of Aversa (53047 inhabitants)
72 Km E of Giugliano in Campania (122974 inhabitants)
73 Km E of Marano di Napoli (59874 inhabitants)
75 Km NW of Potenza (67122 inhabitants)
77 Km W of Cerignola (58396 inhabitants)
81 Km SW of San Severo (53905 inhabitants)
82 Km E of Pozzuoli (81661 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 3.0 1986-04-17
21:27:48
41.001 15.05 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 25739
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-04-17 21:27:48 ± 0.406
Latitude 41.0010 ± 0.0130
Longitude 15.0500 ± 0.0152
Depth (km) 8 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 25739

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 1922.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00121
Epicentral distance of station farthest from the epicenter (degree) 0.02647
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitude information

Md:3.0

Field Value
Value 3.0
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 25739
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:27:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BRT.Z. 1986-04-17T21:28:38.00 10.0 undecidable manual SN 94 1.5762 0.4 0.5
--.ARV.Z. 1986-04-17T21:28:37.00 10.0 undecidable manual PN 328 2.9415 1.45 0.2
--.FG3.Z. 1986-04-17T21:28:23.00 10.0 undecidable manual SG 43 0.9657 0.57 0.6
--.CDM.Z. 1986-04-17T21:28:21.00 10.0 undecidable manual SG 84 0.9213 0.25 0.7
--.AQU.Z. 1986-04-17T21:28:21.50 10.0 undecidable manual PN 318 1.8204 1.25 0.4
--.BRT.Z. 1986-04-17T21:28:18.00 10.0 undecidable manual PN 94 1.5762 1.04 0.7
--.MSC.Z. 1986-04-17T21:28:17.50 10.0 undecidable manual SG 283 0.8214 -0.38 0.7
--.FG2.Z. 1986-04-17T21:28:16.50 10.0 undecidable manual SG 5 0.7992 -0.51 0.6
--.BAI.Z. 1986-04-17T21:28:15.00 10.0 undecidable manual PN 85 1.3764 0.88 0.9
--.SD1.Z. 1986-04-17T21:28:11.00 10.0 undecidable manual PN 307 1.1544 -0.2 1.6
--.OVO.Z. 1986-04-17T21:28:09.00 10.0 undecidable manual SG 250 0.5217 1.13 0.3
--.CDM.Z. 1986-04-17T21:28:07.50 10.0 undecidable manual PG 84 0.9213 0.27 1.7
--.MG9.Z. 1986-04-17T21:28:07.00 10.0 undecidable manual PG 156 0.9324 -0.6 1.4
--.FG3.Z. 1986-04-17T21:28:07.00 10.0 undecidable manual PG 43 0.9657 -1.2 0.7
--.SGO.Z. 1986-04-17T21:28:06.00 10.0 undecidable manual SG 156 0.4773 -0.58 0.6
--.MSC.Z. 1986-04-17T21:28:05.00 10.0 undecidable manual PG 283 0.8214 -0.57 1.5
--.FG2.Z. 1986-04-17T21:28:04.00 10.0 undecidable manual PG 5 0.7992 -1.07 0.9
--.DUI.Z. 1986-04-17T21:28:04.50 10.0 undecidable manual PG 326 0.7881 -0.31 1.7
--.SOR.Z. 1986-04-17T21:28:02.10 10.0 undecidable manual PG 232 0.6882 -0.69 1.4
--.OVO.Z. 1986-04-17T21:28:01.20 10.0 undecidable manual PG 250 0.5217 1.41 0.5
--.FG4.Z. 1986-04-17T21:28:01.50 10.0 undecidable manual SG 69 0.3663 -1.64 0.1
--.SGG.Z. 1986-04-17T21:28:00.40 10.0 undecidable manual PG 307 0.6327 -1.48 0.4
--.SGO.Z. 1986-04-17T21:27:58.50 10.0 positive manual PG 156 0.4773 -0.55 3
--.FG4.Z. 1986-04-17T21:27:57.00 10.0 undecidable manual PG 69 0.3663 -0.07 1.8
--.FG5.Z. 1986-04-17T21:27:56.50 10.0 undecidable manual PG 30 0.3219 0.36 1.7
--.TR9.Z. 1986-04-17T21:27:53.10 10.0 undecidable manual PG 71 0.1332 0.79 1.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download